This study examined whether adolescents with anorexia nervosa (AN) are more sensitive to punishment and less sensitive to reward than a non-eating disorder comparison group. Both self-report and performance measures were used to index reward and punishment sensitivity. Participants were adolescents with AN (n = 69) and an individually matched comparison group with healthy weight (n = 69).
View Article and Find Full Text PDFPrevious research showed that individuals who were remitted from a depressive disorder displayed heightened attention towards negative adjectives (e.g., worthless).
View Article and Find Full Text PDFThis study examined differences in food-related Attentional Bias (AB) between patients with Anorexia Nervosa (AN) and adolescents without an eating disorder. AB was assessed with an Attentional Response to Distal versus Proximal Emotional Information (ARDPEI) task that was specifically designed to differentiate between attentional engagement with and attentional disengagement from food. We tested if patients with AN would show less attentional engagement and less difficulty to disengage their attention from food cues than individuals without an eating disorder.
View Article and Find Full Text PDFBackground: The aim of this study was to improve our understanding of the underlying mechanisms in the maintenance of depression. We examined attentional bias (AB) for negative and positive adjectives and general threat words in strictly-defined clinical groups of participants with pure Major Depressive Disorder (MDD) without a history of anxiety disorders (AD), mixed MDD and AD, and remitted participants.
Method: We investigated both stimulus specificity and time course of AB in these groups, adopting a cross-sectional design.
Many efforts to design introductory "cultural competence" courses for medical students rely on an information delivery (competence) paradigm, which can exoticize patients while obscuring social context, medical culture, and power structures. Other approaches foster a general open-minded orientation, which can remain nebulous without clear grounding principles. Medical educators are increasingly recognizing the limitations of both approaches and calling for strategies that reenvision cultural competence training.
View Article and Find Full Text PDFSepsis is a highly lethal disorder characterized by widespread apoptosis-induced depletion of immune cells and the development of a profound immunosuppressive state. IL-7 is a potent antiapoptotic cytokine that enhances immune effector cell function and is essential for lymphocyte survival. In this study, recombinant human IL-7 (rhIL-7) efficacy and potential mechanisms of action were tested in a murine peritonitis model.
View Article and Find Full Text PDFBiochem Biophys Res Commun
May 2009
Cell penetrating peptides (CPPs) have been used to deliver the anti-apoptotic Bcl-xL-derived BH4 peptide to prevent injury-induced apoptosis both in vitro and in vivo. Here we demonstrate that the nuclear localization sequence (NLS) from the SV40 large T antigen has favorable properties for BH4 domain delivery to lymphocytes compared to sequences based on the HIV-1 TAT sequence. While both TAT-BH4 and NLS-BH4 protected primary human mononuclear cells from radiation-induced apoptotic cell death, TAT-BH4 caused persistent membrane damage and even cell death at the highest concentrations tested (5-10 microM) and correlated with in vivo toxicity as intravenous administration of TAT-BH4 caused rapid death.
View Article and Find Full Text PDFImmune suppression is a major cause of morbidity and mortality in the patients with sepsis. Apoptotic loss of immune effector cells such as CD4 T and B cells is a key component in the loss of immune competence in sepsis. Inhibition of lymphocyte apoptosis has led to improved survival in animal models of sepsis.
View Article and Find Full Text PDFThe relationship between cardiovascular and cortical responses was examined in an experiment in which subjects performed a detection task and a simple reference task. The detection task was developed according to Skinner et al., (1987).
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